<button class="button">
  <span>Hover me</span>
</button>
<style>
/* From Uiverse.io by gharsh11032000 - Tags: button, hover effect, hoverme */
.button {
  text-decoration: none;
  color: white;
  font-weight: 600;
  font-size: 20px;
  text-transform: uppercase;
  letter-spacing: 2px;
  padding: 15px 30px;
  display: block;
  background-color: transparent;
  border: none;
  position: relative;
  cursor: pointer;
  transition: all 0.6s cubic-bezier(0.23, 1, 0.320, 1);
}

.button span {
  background: linear-gradient(-45deg, #63A4FF 0%, #83EAF1 100% );
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.button:hover span {
  -webkit-text-fill-color: white;
}

.button::before {
  position: absolute;
  content: "";
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  transform: scaleY(2);
  border: 3px solid;
  border-image: linear-gradient(-45deg, #63A4FF 0%, #83EAF1 100% );
  border-image-slice: 1;
  border-width: 2px 0 2px 0;
  opacity: 0;
  pointer-events: none;
  transition: all 0.6s cubic-bezier(0.23, 1, 0.320, 1);
  z-index: -1;
}

.button:hover::before {
  transform: scaleY(0);
  opacity: 1;
}

.button::after {
  position: absolute;
  content: "";
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(-45deg, #63A4FF 0%, #83EAF1 100% );
  transform: scale(0);
  pointer-events: none;
  transition: all 0.6s cubic-bezier(0.23, 1, 0.320, 1);
  z-index: -1;
}

.button:hover::after {
  transform: scaleY(1);
}

.button:active {
  scale: 0.90;
}


</style>
